Collaborative Research: Continuation of Development and Application of AO-FVCOM to Improve Understanding of Arctic Changes

合作研究：继续开发和应用AO-FVCOM以提高对北极变化的了解

• 批准号: 1203643
• 负责人: Andrey Proshutinsky
• 金额: $ 28.93万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2016-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1203643&HistoricalAwards=false
• 关键词: Collaborative; Research; Continuation; Development; Application

The PIs have successfully developed a high-resolution unstructured-grid, finitevolumecoupled ice-ocean model for the Arctic Ocean (AO-FVCOM). AO-FVCOM has beenvalidated via comparison to observed data under climatological conditions. Now they seek support to work on the following three tasks: 1) Calibrate and validate AO-FVCOM using observational data collected in the Canada Arctic Basin and its marginal Chukchi and Beaufort Sea. This region is chosen for intense study because it has the most pronounced loss of sea ice extent and thickness in recent years and its unprecedented coverage by multiyear national and international field and modeling studies. 2) Apply the new calibrated and validated AV-FVCOM to investigate the following scientific topics: a) improve understanding of the circulation of the Alaskan Coastal Current and Pacific and Atlantic waters in the study region, b) revisit scientific questions and methodological problems associated with shelf-basin exchange (SBE) processes in the region, and c) apply AO-FVCOM to investigate transformations and transports of fresh water (both liquid and solid) from freshwater sources (Bering Strait, rivers, central Beaufort Gyre, precipitation) towards the North Atlantic Ocean via Fram and Canadian Archipelago Straits. 3) Train a Ph.D. student in advanced Arctic Ocean modeling.Successful completion of this project will provide an additional protocol for modeling Arctic Ocean processes. It will also advance understanding of the circulation and mixing processes in the Arctic Ocean, processes which will grow in socio-economic importance with increasing ice loss and development activities in this part of the globe.

PIS已成功地开发了北冰洋高分辨率非结构网格有限耦合冰-海模式(AO-FVCOM)。通过与气候条件下观测数据的比较，验证了AO-FVCOM的有效性。现在，他们寻求支持开展以下三项工作：1)使用在加拿大北极盆地及其边缘楚科奇和波弗特海收集的观测数据，校准和验证AO-FVCOM。之所以选择该地区进行密集研究，是因为它是近年来海冰面积和厚度损失最明显的地区，其覆盖范围前所未有，受到多年的国内和国际实地和模拟研究的影响。2)应用新校准和验证的AV-FVCOM研究下列科学专题：a)提高对研究区域内阿拉斯加沿岸流以及太平洋和大西洋水域环流的了解，b)重新审视与该区域陆架盆地交换(SBE)过程有关的科学问题和方法问题，以及c)应用AO-FVCOM研究淡水(包括液体和固体)从淡水来源(白令海峡、河流、Beaufort Gyre中部、降水)通过Fram和加拿大群岛海峡向北大西洋的转化和输送。3)培训一名高级北冰洋模型博士生。该项目的圆满完成将为北冰洋过程建模提供额外的协议。它还将增进对北冰洋环流和混合过程的了解，随着地球这一地区冰流失和发展活动的增加，这一过程将具有越来越重要的社会经济意义。